Chapter 18

Chapter 18 is titled - "Tea at the Treedome, Part 1".

Summary
After Spongebob discusses what he went through with Patrick, he sets off to the address Sandy gave him. He reaches Sandy's Treedome and is greeted by her, but he would soon notice something; the fact the Treedome is filled with air and not water. To not seem rude he sits at the table and is offered tea, but he knows that he won't be able to hold his breath for any longer.